android - Check if given email exists

Question

Is there a way to know if the email entered by user is real in Firebase? Does the built-in sign up with email&password method have this feature?

EDIT: sorry for the misunderstanding . I don't care if the email has been used before , what I need to know is: if the entered email is 'made-up' or 'real , exists'

Answer 1

Waitting for answers